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Air sampling unit for microbiological and or chemical air sampling has at least a redundant flow velocity sensor so that comparison of the two or more sensor outputs ensures faulty operation of one of the sensors can be detected
Air sampling unit for microbiological and or chemical air sampling has at least a redundant flow velocity sensor so that comparison of the two or more sensor outputs ensures faulty operation of one of the sensors can be detected
Air sampling unit in which the flow velocity is measured during sampling using at least one additional flow velocity sensor in addition to a first sensor.
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